A website builder API lets software create, edit and publish websites programmatically, without anyone clicking in a visual editor. It's how platforms generate thousands of sites for their users.
What an API typically offers
- Create a site from a template or AI prompt
- Update content (text, images, products)
- Manage pages and navigation
- Publish, unpublish and connect domains
- Manage users and permissions
- Webhooks for form submissions and events
Use cases
| Who | Use |
|---|---|
| SaaS platforms | Give every customer a website automatically |
| Agencies | Generate client previews or sites in bulk |
| Marketplaces | Storefront per seller |
| Franchises | Location sites from one data source |
What to check
- Authentication and rate limits
- Content model flexibility
- Hosting and custom domain support
- Pricing per site or per call
- Data export and ownership
Headless alternative
A headless CMS plus a frontend framework gives full control; a builder API gives speed and hosting. Pick by how much customisation you need.
Related: what developers can do with AI website builders.
Generate website previews for many leads quickly, without touching an API.
Start free — no card neededor claim up to 3,000 FREE credits with a paid planBulk-friendly preview packages:
Basic
$9.99/month
11,500 credits a month
+ 1,000 FREE credits
- About 261 done-for-you leads
- or 88 AI website previews
- All features included
Pro
$39/month
50,000 credits a month
+ 1,500 FREE credits
- About 1,136 done-for-you leads
- or 384 AI website previews
- All features included
Premium
$79/month
105,000 credits a month
+ 3,000 FREE credits
- About 2,386 done-for-you leads
- or 807 AI website previews
- All features included
Frequently asked questions
What is a website builder API?
An interface that lets software create, update and publish websites programmatically instead of through a visual editor.
Who uses website builder APIs?
SaaS platforms, agencies, marketplaces and franchises that need to generate or manage many sites from data.